Research

HPCC is a voluntary, independent body run by and for users of handheld and portable computers and calculators. The club has been helping members for more than 30 years to get the most from their Hewlett Packard equipment and to further the exchange of information and ideas.

Online collection of Mechanical calculators, Electro-mechanical calculators, Electronic calculators, DEC PDP-11 family computers, i8080, i8085 family computers, Z80 family computers, etc.

RSKEY.ORG is a site dedicated to the history of programmable handheld calculators. The site is owned and operated by Viktor T. Toth.

Welcome to the Museum! Allow me to introduce myself. My name is Andrew Davie, I'm based in Hobart, Tasmania, and I'm a collector of hand-held computing devices such as slide rules and electronic calculators. On this site you will find pictures and details about all the Soviet electronic calculators that I know about.

Collection of Calculators, around 4007 calculators online.

Collection of Calculating Machines.

The Calculator Home Page at calculator.org is a collection of resources related to calculators. Over two million PC and handheld device owners around the world are using Calc, our popular engineering, scientific and financial calculator for Windows. The calculator includes functions for statistics, use of different number bases (binary, octal, hexadecimal and base-n), metric units conversions and physical properties and constants. It has financial functions including investment, loan and savings calculations.

The Oughtred Society was founded in 1991 by a group of slide rule collectors and is dedicated to the preservation and history of slide rules and other calculating instruments. In the past 22 years it has evolved to an international organization with members in 22 countries.

We are an Austin, Texas nonprofit organization seeking to inspire and educate the public with engaging exhibits on the evolution of computer history and its influence on our common cultural experience. We develop and support digital archival studies through services to universities and other institutions, and conserve computer history information through digital preservation.

The Bletchley Park Science and Innovation Centre (BPSIC), a key mover in the regeneration of the Bletchley Park, was established in 2004 by Bletchley Park Capital Partners Ltd (BPCP). BPCP is run by local entrepreneurs who established a partnership with the Bletchley Park Trust to provide a mutually profitable arrangement for the regeneration of Bletchley Park at a time when the Park was severely strapped for cash.